ATE548663T1 - DYNAMIC CUT-OFF FREQUENCY VARYING FILTER - Google Patents

DYNAMIC CUT-OFF FREQUENCY VARYING FILTER

Info

Publication number
ATE548663T1
ATE548663T1 AT05848360T AT05848360T ATE548663T1 AT E548663 T1 ATE548663 T1 AT E548663T1 AT 05848360 T AT05848360 T AT 05848360T AT 05848360 T AT05848360 T AT 05848360T AT E548663 T1 ATE548663 T1 AT E548663T1
Authority
AT
Austria
Prior art keywords
sensor measurement
cut
difference
filter
frequency
Prior art date
Application number
AT05848360T
Other languages
German (de)
Inventor
Hongqiao Sun
Vesna Mirkovic
w Wheat
Original Assignee
Texaco Development Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texaco Development Corp filed Critical Texaco Development Corp
Application granted granted Critical
Publication of ATE548663T1 publication Critical patent/ATE548663T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Feedback Control In General (AREA)
  • Networks Using Active Elements (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Filters And Equalizers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

A method and apparatus are disclosed. The apparatus includes a store of at least one historical sensor measurement, a store of potential cut-off frequencies, and a filter. Each potential cut-off frequency is associated with a respective potential difference between a sensor measurement and the stored historical sensor measurement. The filter has a cut-off frequency dynamically selected from the stored potential cut-off frequencies on the basis of a difference between the stored historical sensor measurement and a current sensor measurement. The method includes determining a difference between a current sensor measurement and a historical sensor measurement; and dynamically selecting a cut-off frequency for a filter for the current sensor measurement from the difference.
AT05848360T 2004-12-17 2005-12-09 DYNAMIC CUT-OFF FREQUENCY VARYING FILTER ATE548663T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/016,278 US7266464B2 (en) 2004-12-17 2004-12-17 Dynamic cut-off frequency varying filter
PCT/US2005/044741 WO2006065677A2 (en) 2004-12-17 2005-12-09 Dynamic cut-off frequency varying filter

Publications (1)

Publication Number Publication Date
ATE548663T1 true ATE548663T1 (en) 2012-03-15

Family

ID=36588410

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05848360T ATE548663T1 (en) 2004-12-17 2005-12-09 DYNAMIC CUT-OFF FREQUENCY VARYING FILTER

Country Status (17)

Country Link
US (1) US7266464B2 (en)
EP (1) EP1828788B1 (en)
JP (1) JP5379379B2 (en)
KR (1) KR101328904B1 (en)
CN (1) CN101103276B (en)
AT (1) ATE548663T1 (en)
AU (1) AU2005316730B2 (en)
BR (1) BRPI0519108A2 (en)
CA (1) CA2590716C (en)
DK (1) DK1828788T3 (en)
ES (1) ES2379971T3 (en)
HK (1) HK1117235A1 (en)
MX (1) MX2007007186A (en)
MY (1) MY158118A (en)
NO (1) NO20073653L (en)
TW (1) TWI391676B (en)
WO (1) WO2006065677A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006028006A1 (en) * 2006-06-14 2007-12-20 Siemens Ag Field device and method for processing at least one measured variable in a field device
EP2144356B1 (en) * 2008-07-09 2019-06-26 Dialog Semiconductor GmbH Buck converter threshold detection for automatic pulse skipping mode
EP2659468B1 (en) * 2010-12-30 2016-04-06 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO A system, a processing unit, a method and a computer program product for monitoring sensors
WO2014091858A1 (en) * 2012-12-12 2014-06-19 本田技研工業株式会社 Parking space detector
KR101433712B1 (en) * 2013-03-07 2014-08-27 순환엔지니어링 주식회사 Control apparatus of linear motion stage
DE102014000276A1 (en) * 2014-01-09 2015-07-09 Fresenius Medical Care Deutschland Gmbh Monitoring system and method for fluid-carrying production system
EP3101278B1 (en) * 2015-06-03 2021-04-28 ABB Schweiz AG Active damping of oscillations in a control process
DE102016011865A1 (en) * 2016-10-01 2018-04-05 Khd Humboldt Wedag Gmbh Regulating device with adjustability of the control behavior

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678416A (en) * 1971-07-26 1972-07-18 Richard S Burwen Dynamic noise filter having means for varying cutoff point
US4801890A (en) * 1985-06-17 1989-01-31 Dolby Ray Milton Circuit arrangements for modifying dynamic range using variable combining techniques
JPS62269008A (en) * 1986-05-16 1987-11-21 Toyota Central Res & Dev Lab Inc Road-surface shape measuring apparatus
US4829299A (en) * 1987-09-25 1989-05-09 Dolby Laboratories Licensing Corporation Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading
JPH0829651B2 (en) * 1988-08-08 1996-03-27 日産自動車株式会社 Suspension control device for vehicle
JP3211104B2 (en) * 1992-02-14 2001-09-25 オムロン株式会社 Signal processing device
JP2595406B2 (en) * 1992-03-10 1997-04-02 株式会社イシダ Weighing device
JP2507285B2 (en) * 1992-10-08 1996-06-12 日本コロムビア株式会社 Bit length expansion device
JPH06338762A (en) * 1993-05-28 1994-12-06 Fujitsu Ltd Filter circuit
JP3052698B2 (en) * 1993-10-29 2000-06-19 日産自動車株式会社 Suspension control device
JP3060809B2 (en) * 1993-12-24 2000-07-10 日産自動車株式会社 Suspension control device
JP3208975B2 (en) * 1993-12-28 2001-09-17 株式会社日立製作所 Active filter control method
US5698984A (en) * 1996-01-30 1997-12-16 Fluke Corporation Adaptive digital filter for improved measurement accuracy in an electronic instrument
JPH09325860A (en) * 1996-06-04 1997-12-16 Alps Electric Co Ltd Coordinate input device
JP3780634B2 (en) * 1997-06-03 2006-05-31 株式会社島津製作所 Chromatographic signal processor
JPH11108751A (en) * 1997-10-08 1999-04-23 Ishida Co Ltd Measuring device with filter automatic regulating function
US6594613B1 (en) * 1998-12-10 2003-07-15 Rosemount Inc. Adjustable bandwidth filter for process variable transmitter
JP4308955B2 (en) * 1999-01-20 2009-08-05 パナソニック株式会社 Filter device and filter coefficient acquisition method thereof
JP2003510940A (en) * 1999-09-28 2003-03-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Integrated circuit with charge-balancing filter to reduce transient disturbances
US6757910B1 (en) * 2000-06-08 2004-06-29 C-Cor.Net Corporation Adaptive filter for reducing ingress noise in CATV return signals
US6894580B2 (en) * 2000-10-05 2005-05-17 Globespanvirata, Inc Filter tuner system and method
US6710644B2 (en) * 2000-11-29 2004-03-23 Broadcom Corporation Low pass filter corner frequency tuning circuit and method
US6507799B2 (en) * 2001-02-26 2003-01-14 Honeywell International Inc. Method and apparatus for reducing microprocessor speed requirements in data acquisition applications
JP5091374B2 (en) * 2001-05-15 2012-12-05 日本テキサス・インスツルメンツ株式会社 Filter circuit
US6512472B1 (en) * 2002-01-15 2003-01-28 Motorola, Inc. Method and apparatus for optimizing dynamic range of a wideband analog-to-digital converter
JP3622728B2 (en) * 2002-01-30 2005-02-23 日本電気株式会社 Baseband circuit of receiver and low cut-off frequency control method thereof
FR2835667B1 (en) * 2002-02-07 2006-08-04 St Microelectronics Sa METHOD FOR ADJUSTING THE CUT-OFF FREQUENCY OF AN ELECTRONIC FILTERING SYSTEM AND CORRESPONDING SYSTEM
US6760362B2 (en) * 2002-03-15 2004-07-06 Qualcomm Incorporated Dynamic pilot filter bandwidth estimation
US6888422B2 (en) * 2002-12-27 2005-05-03 Harris Corporation Continuously variable filter
US7016715B2 (en) * 2003-01-13 2006-03-21 Nellcorpuritan Bennett Incorporated Selection of preset filter parameters based on signal quality
US6741919B1 (en) * 2003-02-26 2004-05-25 General Electric Company Methods and apparatus for detecting impending sensor failure
JP2004351983A (en) * 2003-05-27 2004-12-16 Koyo Seiko Co Ltd Electric power steering device and motor control method
JP2005136647A (en) * 2003-10-30 2005-05-26 New Japan Radio Co Ltd Bass booster circuit

Also Published As

Publication number Publication date
WO2006065677A3 (en) 2006-10-12
CN101103276B (en) 2010-09-08
TW200641363A (en) 2006-12-01
EP1828788B1 (en) 2012-03-07
WO2006065677A2 (en) 2006-06-22
CA2590716A1 (en) 2006-06-22
MX2007007186A (en) 2007-08-14
EP1828788A2 (en) 2007-09-05
BRPI0519108A2 (en) 2008-12-23
AU2005316730B2 (en) 2011-06-02
HK1117235A1 (en) 2009-01-09
ES2379971T3 (en) 2012-05-07
DK1828788T3 (en) 2012-05-21
NO20073653L (en) 2007-09-13
JP5379379B2 (en) 2013-12-25
US7266464B2 (en) 2007-09-04
MY158118A (en) 2016-08-30
JP2008524927A (en) 2008-07-10
CN101103276A (en) 2008-01-09
AU2005316730A1 (en) 2006-06-22
EP1828788A4 (en) 2010-06-16
TWI391676B (en) 2013-04-01
US20060136157A1 (en) 2006-06-22
KR20070104538A (en) 2007-10-26
CA2590716C (en) 2014-12-02
KR101328904B1 (en) 2013-11-13

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